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The op census of a decode step (DEEPINFER_NEURON_REGION_TIMING) found 85 eager aten ops in the forward outside the region graphs but 1905 in sampling (the top-p/top-k bisection and the int64 philox draw), ~0.6 s of NEFF launches. - The log-softmax / top-p / top-k part runs as one compiled graph: 1.4 ms instead of 46.7 ms on one core for the [1, 4096] force_topk row, logprobs within 1e-9. - Greedy rows (temperature clamped to SAMPLING_EPS) have one-hot weights, so the two-level draw returns their argmax; an all-greedy batch takes the argmax from the graph and skips the draw. The philox draw stays eager for sampled rows: neuronx-cc graphs reject 64-bit constants outside the int32 range (NCC_ESFH001), an int32 philox is #3. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |
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| .. | ||
| __init__.py | ||
| base.py | ||
| cache_engine.py | ||
| cuda_graph_runner.py | ||
| decode_perf_cache.py | ||
| dflash_cuda_graph_runner.py | ||
| model_runner.py | ||
| neuron_graph_runner.py | ||
| runtime_config.py | ||
| worker.py | ||
| zos_status.py | ||